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1SDA074795R1 ABB XT2H 125 TMF 50-500 3-Pole Circuit Breaker
ABB 1SDA074795R1 XT2H 125 TMF 50-500 is a 50 A three-pole fixed moulded case circuit breaker with TMF thermomagnetic protection, a 500 A magnetic trip value and a 65 kA interruption rating at 480 V AC.
£357.74
Why Choose the ABB XT2H 125 TMF 50-500 1SDA074795R1 Circuit Breaker?
The ABB 1SDA074795R1 is a high-performance three-pole moulded case circuit breaker (MCCB) designed for reliable protection and isolation of low-voltage electrical distribution systems. As part of the ABB SACE Tmax XT / T-Max XT 250 range, this XT2H 125 breaker combines compact construction with a high interruption rating for demanding industrial, commercial and machine-building applications.
This circuit breaker incorporates an ABB TMF thermomagnetic trip unit, providing thermal overload protection together with instantaneous magnetic short-circuit protection. Its fixed installation and front-terminal configuration allow straightforward integration into switchboards, distribution panels and electrical control equipment.
With a rated current of 50 A, a magnetic short-circuit trip value of 500 A and a rated voltage of 600 V AC, the XT2H 125 TMF 50-500 provides dependable protection for three-phase circuits. The H breaking-capacity version offers an interruption rating of 65 kA at 480 V AC, making it particularly suitable for installations with high prospective fault currents.
Key Advantages
- Compact ABB SACE Tmax XT2 moulded case circuit breaker for low-voltage distribution.
- 50 A rated current for industrial, commercial and machinery circuits.
- Three-pole configuration suitable for three-phase electrical systems.
- Integrated TMF thermomagnetic trip unit provides overload and short-circuit protection.
- 500 A magnetic short-circuit trip value for rapid response to high fault currents.
- High 65 kA interruption rating at 480 V AC.
- Fixed installation with front terminals for straightforward switchboard integration.
Key Features
- ABB SACE Tmax XT2H 125 series.
- 50 A rated current.
- 500 A magnetic trip value.
- Three-pole circuit breaker.
- TMF thermomagnetic trip unit.
- 600 V AC rated voltage.
- H breaking-capacity class.
- 65 kA interruption rating at 480 V AC.
- 150 kA interruption rating at 240 V AC.
- Fixed mounting configuration.
- Front-positioned main circuit connections.
- Bolt connection for the main electrical circuit.
- Manual toggle operating mechanism.
- Optional motor operation.
- IP20 protection rating.
- Designed for UL/CSA applications.
Reliable High-Capacity Circuit Protection
Moulded case circuit breakers such as the ABB XT2H 125 protect electrical circuits and connected equipment against damaging overcurrents caused by overload and short-circuit conditions. The TMF thermomagnetic trip unit combines thermal protection for sustained overloads with magnetic protection for high-current faults, providing dependable circuit protection without requiring a separate electronic trip unit.
The ABB SACE Tmax XT range is designed for efficient integration into modern low-voltage distribution equipment. The XT2H configuration combines a compact frame with high short-circuit interruption capability, while fixed mounting and front terminals make the 1SDA074795R1 well suited to panel builders, machine builders and electrical distribution installations.
Typical Applications
- Industrial low-voltage distribution boards.
- Commercial electrical distribution systems.
- Machine and production equipment.
- Electrical switchboards and control panels.
- Three-phase branch circuit protection.
- Power distribution, cable and equipment protection.
- OEM machinery and automation systems.
Technical Specifications
| Series | SACE Tmax XT / T-Max XT 250 Range |
|---|---|
| Frame size | XT2 |
| ABB order code | 1SDA074795R1 |
| Alternate catalogue number | XT2HU3050AFF000XXX |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame rated current | 125 A |
| Rated continuous current | 50 A |
| Overload protection setting | 50 A |
| Magnetic short-circuit trip value | 500 A |
| Rated voltage | 600 V AC |
| Number of poles | 3 |
| Trip unit | TMF thermomagnetic |
| Breaking capacity class | H |
| Interruption rating at 480 V AC | 65 kA |
| Interruption rating at 240 V AC | 150 kA |
| Installation | Fixed |
| Terminal position | Front |
| Main circuit connection | Bolt connection |
| Operating mechanism | Toggle |
| Motor operation | Optional |
| Integrated earth-fault protection | No |
| Protection rating | IP20 |
| Power dissipation | 4.1 W |
| Standard | UL |
| UPC / EAN | 8015644787721 |
| Weight | approx. 1.2 kg |
Frequently Asked Questions
What is the ABB 1SDA074795R1 used for?
The ABB 1SDA074795R1 is a three-pole moulded case circuit breaker used to protect low-voltage electrical circuits against overloads and short circuits in industrial, commercial and machine-building applications.
What is the rated current of the ABB XT2H 125 1SDA074795R1?
The circuit breaker has a rated continuous current of 50 A within the XT2 125 A frame size.
What is the interruption rating of this circuit breaker?
The XT2H 125 has an H-class interruption rating of 65 kA at 480 V AC and 150 kA at 240 V AC.
What type of trip unit does the ABB 1SDA074795R1 use?
The breaker uses an integrated TMF thermomagnetic trip unit, providing thermal overload protection at 50 A together with magnetic short-circuit protection at 500 A.
Is the ABB 1SDA074795R1 suitable for UL/CSA applications?
Yes. The XT2H 125 TMF 50-500 is configured for UL/CSA applications and provides a rated voltage of 600 V AC with high short-circuit interruption capability.
Trusted for Low-Voltage Electrical Protection
ABB SACE Tmax XT moulded case circuit breakers are widely used in industrial, commercial and OEM electrical systems, providing compact, dependable circuit protection and high interruption capability for modern low-voltage distribution equipment.
